011-11-04 14:42:57,222 INFO nova.db.sqlalchemy [-] Using mysql/eventlet db_pool.
2011-11-04 14:43:02,239 CRITICAL nova [-]
(nova): TRACE: Traceback (most recent call last):
(nova): TRACE:   File "/usr/bin/nova-compute", line 49, in <module>
(nova): TRACE:     service.wait()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 357, in wait
(nova): TRACE:     _launcher.wait()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 107, in wait
(nova): TRACE:     service.wait()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/greenthread.py", line 166, in wait
(nova): TRACE:     return self._exit_event.wait()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/event.py", line 116, in wait
(nova): TRACE:     return hubs.get_hub().switch()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/hubs/hub.py", line 177, in switch
(nova): TRACE:     return self.greenlet.switch()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/greenthread.py", line 192, in main
(nova): TRACE:     result = function(*args, **kwargs)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 77, in run_server
(nova): TRACE:     server.start()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/service.py", line 137, in start
(nova): TRACE:     self.manager.init_host()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/compute/manager.py", line 159, in init_host
(nova): TRACE:     instances = self.db.instance_get_all_by_host(context, self.host)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/db/api.py", line 536, in instance_get_all_by_host
(nova): TRACE:     return IMPL.instance_get_all_by_host(context, host)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/db/sqlalchemy/api.py", line 101, in wrapper
(nova): TRACE:     return f(*args, **kwargs)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/db/sqlalchemy/api.py", line 1392, in instance_get_all_by_host
(nova): TRACE:     session = get_session()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/db/sqlalchemy/session.py", line 53, in get_session
(nova): TRACE:     _ENGINE = get_engine()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/nova/db/sqlalchemy/session.py", line 87, in get_engine
(nova): TRACE:     creator = eventlet.db_pool.ConnectionPool(MySQLdb, **pool_args)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/db_pool.py", line 50, in __init__
(nova): TRACE:     order_as_stack=True)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/pools.py", line 108, in __init__
(nova): TRACE:     self.free_items.append(self.create())
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/db_pool.py", line 246, in create
(nova): TRACE:     **self._kwargs)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/db_pool.py", line 253, in connect
(nova): TRACE:     conn = tpool.execute(db_module.connect, *args, **kw)
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/tpool.py", line 119, in execute
(nova): TRACE:     rv = e.wait()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/event.py", line 116, in wait
(nova): TRACE:     return hubs.get_hub().switch()
(nova): TRACE:   File "/usr/lib/pymodules/python2.6/eventlet/hubs/hub.py", line 177, in switch
(nova): TRACE:     return self.greenlet.switch()
(nova): TRACE: ConnectTimeout
(nova): TRACE: